How much are Web Designers worth?

Hi I'm new here, and relatively new to web design i.e. 3 years ago I wouldnâ€™t know what html or what a psd was?

I now find myself working as a web designer and was wondering if anyone could enlighten me to what Web Designers are likely to earn based on experience.

I've often noticed job ad's specify 2 years and 5 yearsâ€™ experience and often refer to designers as junior/graduate, middleweight, senior though they do often appear to be written by f***wits with little knowledge of the job requirements.

I have also read that designers and developers wages are on the up

I would be particularly be interested to know what a designer with 2 years commercial experience would earn, not that Iâ€™m anywhere near that mark yet?